Preheat the oven to 400°.
Slice potatoes with a mandolin slicer or by hand and place them in a mixing bowl.
Add in the oil and the spices (onion powder, garlic powder, rosemary, thyme and salt) and toss all together.
Place a strip of bacon on a cutting board. I like to try and stretch the back just a bit first.
Line the piece of bacon with potato slices, overlapping just a bit with each one. Leave about an inch at the end of the bacon where there is no potato.
Start at the end closest to you, roll the bacon and potato creating a rose shape and place it in a greased muffin tin.
Repeat with as many as you can make.
Bake for 20 min and then loosely cover with foil to prevent burning, and bake for another 30 minutes.
Remove the Roses from the muffin tin and place on a paper towel to drain off any excess grease.
Top with parmesan and some extra thyme.